Air-heater for gasolene-engines.



J. 0. SNYDER.

AIR HEATER FOR GASOLIENE ENGINES.

' APPLICATION FILED FEB- 23. I9I5- 1357,19.

Patented Oct. 19, 1915.

mmwtoc 6 max;

JOE O. SNYDER, 0F DAYTON, 01 510.

AIR-HEhTER son easoLnnn-anemr's.

Specifleatic; of Letters Patent.

Patented @ct. l9, lfiil'i,

Application filed February 23, 1935. Seriai No. 9,311.

To all whom it may concern Be it known that 1, Jon 0. SNYDER, a citizen of the United States, residing at Dayton, in the county of h/lontgomery and bani/8 of Ohio, have invented certain new and useful improvements in Air-Heaters for Gasolene-Engines; and I do declare the following to be a full,-clear, and exact description of the invention, such as will en-' able others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters and figures of reference marked thereon, which form a part of this specification. I H 1 -This invention relates to, new and useful improvements in means for improving the elhciency of the explosive mixture for gas engines; more specifically speaking, to means for producing and introducing a r at a suitable temperature at a point where it mixes with the gasolene vapon The object of the invention is to provide simple. and efficient means whereby the heat due to the exh". it from the engine is utilized to heat the air, and the air thus heated is caused to enter the intake manifold or carburetor and whereby the gasoleneis mixed with air under most favorable conditions.

Referring to the accompanying drawings, which illustratr my invention, Figure, l is a plan view showingthe cylind rs of an engine and other elements includin the intake manifold. and exhaust mani old and the carburetor with air pipe connections; 2 a sectional view on the line (Jr-a of Fig. 1; Fig. 3 is a sectional view on the line h-Z of Fig. 1.

l designates the heads forming the co bustion chambers of explosive cylinders 2 2).

3 designates a carburetor which is com nected with said heads and communicates with the combustion chambers in sa1d heads through an intake manifold 42 branches 5-5 of which lead into said heads.

6 designates an exhaust manifold formingthe outlet. from the engine forthe products of combustion.

7 designates an air box which is preferably integral with the exhaust manifold '6 though it may be independent thereoi but attached thereto. It is preferable, howevei'. as stated, that this air box shall be integral with the exhaust manifold so that but one leave with the operationof the device.

wall may separate the two in order that the heat due to the exhaust will be trans nnttedreadily to said air box. The interior oi said air box: is provided with one or more walls 8 which cause the air to circulate therein and to be thus trapped for a period and subjected to the heat before it passes into Air is introduced the. intake manifold l.

into one end of said air box through a pipe v 9 which leads to a valve 10. The valve 10 is mounted at a suitable point, the finger 11 thereof being in a convenient place to be manipulated by the hand. The valve it) permits the amount of heated air passing to the carburetor to be adjusted to suit the various atmospheric conditions. As the valve 10 is located at the free end of the pipe 9, the said valve may be located in a position convenient to the. operator who may adjust the air at a moments notice and without inconvenience. Alsr the valve may be operated directly without the agency of ihtervening'connections which are liable to become disconnected and otherwise interin the drawings 1 have shown thesaid valve mounted upon an element 12 which may be the dashboard of an automobile upon which theenglne is mounted. The air introduced to the air box 7 is carried to the intake. manifold i above the'cnrbureter through a pipe 13. The said air box 7 is of an oblong character and is in contact with the substantial part of the exhaust manifold 6. This is desirable in order that the air entering said box will be raised to a high temperature quickly and will insure the heated condition of the air when it passes into the in take manifold. It is well known that air in afiheated condition causes the gasolene to more thoroughly vaporize through expansion of the molecules thereof. The efficiency of the engine is enhanced through an. increasemf speed and a material saving in the consumption of gasolene is effected as Welles a material lessening of the formation of carbon due so often to faulty combustion.'.

' Having described my invention, I claim. The combination with an intake and an exhaust manifold, of an air box mounted on said exhaust manifold and subject to the heat therefrom, an inlet pipe forming a communication between said air box and the atmosphere, a valve located at the free end of said pipe and controlling flu; piijige' of air to said 'b0x,said pipe permitting said valve to b located'at apoint convenient to the operator, and an outlet pipe connecting said Iniesti mony wherof I afilx' my signa-' v tilfe, in presence of two witnesses.

' I JOHN O. .SNYDER.

Withesss: 1 v

WILLIAM D. SNYDER, :R. J. MQCARTY., 

